feat(gitea): generalise mirror creation

Co-Authored-By: Virgil <virgil@lethean.io>

gitea/repos.go

@@ -123,16 +123,14 @@ func (c *Client) GetRepo(owner, name string) (*gitea.Repository, error) {
 	return repo, nil
 }
 
-// CreateMirror creates a mirror repository on Gitea from a GitHub clone URL.
-// This uses the Gitea migration API to set up a pull mirror.
-// If authToken is provided, it is used to authenticate against the source (e.g. for private GitHub repos).
-// Usage: CreateMirror(...)
-func (c *Client) CreateMirror(owner, name, cloneURL, authToken string) (*gitea.Repository, error) {
+// CreateMirrorFromService creates a mirror repository from an arbitrary git service.
+// Usage: CreateMirrorFromService(...)
+func (c *Client) CreateMirrorFromService(owner, name, cloneURL string, service gitea.GitServiceType, authToken string) (*gitea.Repository, error) {
 	opts := gitea.MigrateRepoOption{
 		RepoName:    name,
 		RepoOwner:   owner,
 		CloneAddr:   cloneURL,
-		Service:     gitea.GitServiceGithub,
+		Service:     service,
 		Mirror:      true,
 		Description: "Mirror of " + cloneURL,
 	}
@@ -143,12 +141,20 @@ func (c *Client) CreateMirror(owner, name, cloneURL, authToken string) (*gitea.R
 
 	repo, _, err := c.api.MigrateRepo(opts)
 	if err != nil {
-		return nil, log.E("gitea.CreateMirror", "failed to create mirror", err)
+		return nil, log.E("gitea.CreateMirrorFromService", "failed to create mirror", err)
 	}
 
 	return repo, nil
 }
 
+// CreateMirror creates a mirror repository on Gitea from a GitHub clone URL.
+// This uses the Gitea migration API to set up a pull mirror.
+// If authToken is provided, it is used to authenticate against the source (e.g. for private GitHub repos).
+// Usage: CreateMirror(...)
+func (c *Client) CreateMirror(owner, name, cloneURL, authToken string) (*gitea.Repository, error) {
+	return c.CreateMirrorFromService(owner, name, cloneURL, gitea.GitServiceGithub, authToken)
+}
+
 // DeleteRepo deletes a repository from Gitea.
 // Usage: DeleteRepo(...)
 func (c *Client) DeleteRepo(owner, name string) error {

gitea/repos_test.go

@@ -3,6 +3,9 @@
 package gitea
 
 import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
 	"testing"
 
 	giteaSDK "code.gitea.io/sdk/gitea"
@@ -97,6 +100,38 @@ func TestClient_CreateMirror_Bad_ServerError_Good(t *testing.T) {
 	assert.Contains(t, err.Error(), "failed to create mirror")
 }
 
+func TestClient_CreateMirrorFromService_Good_Gitea_Good(t *testing.T) {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/api/v1/version", func(w http.ResponseWriter, r *http.Request) {
+		jsonResponse(w, map[string]string{"version": "1.21.0"})
+	})
+	mux.HandleFunc("/api/v1/repos/migrate", func(w http.ResponseWriter, r *http.Request) {
+		var opts map[string]any
+		require.NoError(t, json.NewDecoder(r.Body).Decode(&opts))
+		assert.Equal(t, "gitea", opts["service"])
+		assert.Equal(t, true, opts["mirror"])
+		assert.Equal(t, "https://forge.example.org/core/go-scm.git", opts["clone_addr"])
+		assert.Equal(t, "secret-token", opts["auth_token"])
+		w.WriteHeader(http.StatusCreated)
+		jsonResponse(w, map[string]any{
+			"id": 40, "name": "public-mirror", "full_name": "test-org/public-mirror",
+			"owner":  map[string]any{"login": "test-org"},
+			"mirror": true,
+		})
+	})
+
+	srv := httptest.NewServer(mux)
+	defer srv.Close()
+
+	client, err := New(srv.URL, "test-token")
+	require.NoError(t, err)
+
+	repo, err := client.CreateMirrorFromService("test-org", "public-mirror", "https://forge.example.org/core/go-scm.git", giteaSDK.GitServiceGitea, "secret-token")
+	require.NoError(t, err)
+	require.NotNil(t, repo)
+	assert.Equal(t, "public-mirror", repo.Name)
+}
+
 func TestClient_DeleteRepo_Good(t *testing.T) {
 	client, srv := newTestClient(t)
 	defer srv.Close()